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ST92196A датащи(PDF) 231 Page - STMicroelectronics |
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ST92196A датащи(HTML) 231 Page - STMicroelectronics |
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231 / 268 page ![]() 231/268 ELECTRICAL CHARACTERISTICS AC ELECTRICAL CHARACTERISTICS (Cont’d) A/D CONVERTER, EXTERNAL TRIGGER TIMING TABLE (VDD= 5V +/-10%; TA= -10°C to 75°C, unless otherwise specified) A/D CONVERTER, EXTERNAL TRIGGER TIMING TABLE A/D CONVERTER. ANALOG PARAMETERS TABLE (VDD= 5V +/-10% ; TA= -10°C to 75°C, unless otherwise specified)) Notes: (*) The values are expected at 25 Celsius degrees with VDD= 5V (**)’LSBs’ , as used here, as a value of VDD/256 (1) @ 24 MHz external clock (2) including Sample time (3) it must be considered as the on-chip series resistance before the sampling capacitor (4) DNL ERROR= max {[V(i) -V(i-1)] / LSB-1}INL ERROR= max {[V(i) -V(0)] / LSB-i} ABSOLUTE ACCURACY= overall max conversion error N° Symbol Parameter Conditions Value Unit min max 1Tlow Pulse Width 1.5 INTCLK 2Thigh Pulse Distance 1.5 INTCLK 3Text Period/fast Mode 78+1 INTCLK 4Tstr Start Conversion Delay 0.5 1.5 INTCLK Parameter Value Unit Note typ (*) min max (**) Analog Input Range VSS VDD V Conversion Time 138 INTCLK (1,2) Sample Time 87.51 INTCLK (1) Power-up Time 60 µs Resolution 8 bits Differential Non Linearity 0.5 0.3 1.5 LSBs (4) Integral Non Linearity 2 LSBs (4) Absolute Accuracy 2 LSBs (4) Input Resistance 1.5 Kohm (3) Hold Capacitance 1.92 pF EXTRG 1 2 ST (Start Conversion Bit) 3 4 4 VR001401 |
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